一道烧脑的拓扑学空间难题， 你知道怎么把圆环取出来吗？

大利害了，谢谢分享！👍

“Unlock the secrets of reality! Discover how mathematics reveals the hidden world of complete rational abstraction –Discover how Pythagoras’ 'Music of the Spheres' evolves into the current scientific theory known as String Theory.” (Book IV The Cosmic Symphony)

woah, that's a cool puzzle! Hmm, I would have just cut the string lol! But fr, that's amazing!! Been there trying to solve these things for hours haha!

剪刀不会么？中国人脑子有问题?

快刀解难题

省流，从1'01''开始看解法。。。

这个太简单